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winmm: Make midiStream* messages asynchronous to avoid deadlocks.

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This commit is contained in:
Jörg Höhle 2012-02-07 23:10:03 +01:00 committed by Alexandre Julliard
parent 1b11576005
commit 21e47e905e
1 changed files with 20 additions and 26 deletions
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46
dlls/winmm/winmm.c
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@ -1013,14 +1013,15 @@ static BOOL MMSYSTEM_MidiStream_MessageHandler(WINE_MIDIStream* lpMidiStrm, LPWI
for (;;) {
switch (msg->message) {
case WM_QUIT:
SetEvent(lpMidiStrm->hEvent);
return FALSE;
case WINE_MSM_STOP:
TRACE("STOP\n");
/* this is not quite what MS doc says... */
midiOutReset(lpMidiStrm->hDevice);
/* empty list of already submitted buffers */
for (lpMidiHdr = lpMidiStrm->lpMidiHdr; lpMidiHdr; ) {
lpMidiHdr = lpMidiStrm->lpMidiHdr;
lpMidiStrm->lpMidiHdr = NULL;
while (lpMidiHdr) {
LPMIDIHDR lphdr = lpMidiHdr;
lpMidiHdr = lpMidiHdr->lpNext;
lphdr->dwFlags |= MHDR_DONE;
@ -1030,18 +1031,14 @@ static BOOL MMSYSTEM_MidiStream_MessageHandler(WINE_MIDIStream* lpMidiStrm, LPWI
(HDRVR)lpMidiStrm->hDevice, MM_MOM_DONE,
lpwm->mod.dwInstance, (DWORD_PTR)lphdr, 0);
}
lpMidiStrm->lpMidiHdr = 0;
SetEvent(lpMidiStrm->hEvent);
return TRUE;
case WINE_MSM_RESUME:
/* FIXME: send out cc64 0 (turn off sustain pedal) on every channel */
lpMidiStrm->dwStartTicks = GetTickCount() - lpMidiStrm->dwPositionMS;
SetEvent(lpMidiStrm->hEvent);
return TRUE;
case WINE_MSM_PAUSE:
/* FIXME: send out cc64 0 (turn off sustain pedal) on every channel */
paused = TRUE;
SetEvent(lpMidiStrm->hEvent);
break;
/* FIXME(EPP): "I don't understand the content of the first MIDIHDR sent
* by native mcimidi, it doesn't look like a correct one".
@ -1247,26 +1244,13 @@ the_end:
return 0;
}
/**************************************************************************
* MMSYSTEM_MidiStream_PostMessage [internal]
*/
static BOOL MMSYSTEM_MidiStream_PostMessage(WINE_MIDIStream* lpMidiStrm, WORD msg, DWORD pmt1, DWORD pmt2)
{
if (PostThreadMessageA(lpMidiStrm->dwThreadID, msg, pmt1, pmt2)) {
MsgWaitForMultipleObjects( 1, &lpMidiStrm->hEvent, FALSE, INFINITE, 0 );
} else {
ERR("bad PostThreadMessageA\n");
return FALSE;
}
return TRUE;
}
/**************************************************************************
* midiStreamClose [WINMM.@]
*/
MMRESULT WINAPI midiStreamClose(HMIDISTRM hMidiStrm)
{
WINE_MIDIStream* lpMidiStrm;
MMRESULT ret = 0;
TRACE("(%p)!\n", hMidiStrm);
@ -1274,9 +1258,19 @@ MMRESULT WINAPI midiStreamClose(HMIDISTRM hMidiStrm)
return MMSYSERR_INVALHANDLE;
midiStreamStop(hMidiStrm);
MMSYSTEM_MidiStream_PostMessage(lpMidiStrm, WM_QUIT, 0, 0);
PostThreadMessageA(lpMidiStrm->dwThreadID, WM_QUIT, 0, 0);
CloseHandle(lpMidiStrm->hEvent);
HeapFree(GetProcessHeap(), 0, lpMidiStrm);
if (lpMidiStrm->hThread) {
if (GetCurrentThreadId() != lpMidiStrm->dwThreadID)
WaitForSingleObject(lpMidiStrm->hThread, INFINITE);
else {
FIXME("leak from call within function callback\n");
ret = MMSYSERR_HANDLEBUSY; /* yet don't signal it to app */
}
CloseHandle(lpMidiStrm->hThread);
}
if(!ret)
HeapFree(GetProcessHeap(), 0, lpMidiStrm);
return midiOutClose((HMIDIOUT)hMidiStrm);
}
@ -1347,7 +1341,7 @@ MMRESULT WINAPI midiStreamOpen(HMIDISTRM* lphMidiStrm, LPUINT lpuDeviceID,
/* wait for thread to have started, and for its queue to be created */
WaitForSingleObject(lpMidiStrm->hEvent, INFINITE);
MMSYSTEM_MidiStream_PostMessage(lpMidiStrm, WINE_MSM_PAUSE, 0, 0);
PostThreadMessageA(lpMidiStrm->dwThreadID, WINE_MSM_PAUSE, 0, 0);
TRACE("=> (%u/%d) hMidi=%p ret=%d lpMidiStrm=%p\n",
*lpuDeviceID, lpwm->mld.uDeviceID, *lphMidiStrm, ret, lpMidiStrm);
@ -1405,7 +1399,7 @@ MMRESULT WINAPI midiStreamPause(HMIDISTRM hMidiStrm)
if (!MMSYSTEM_GetMidiStream(hMidiStrm, &lpMidiStrm, NULL))
return MMSYSERR_INVALHANDLE;
MMSYSTEM_MidiStream_PostMessage(lpMidiStrm, WINE_MSM_PAUSE, 0, 0);
PostThreadMessageA(lpMidiStrm->dwThreadID, WINE_MSM_PAUSE, 0, 0);
return ret;
}
@ -1501,7 +1495,7 @@ MMRESULT WINAPI midiStreamRestart(HMIDISTRM hMidiStrm)
if (!MMSYSTEM_GetMidiStream(hMidiStrm, &lpMidiStrm, NULL))
return MMSYSERR_INVALHANDLE;
MMSYSTEM_MidiStream_PostMessage(lpMidiStrm, WINE_MSM_RESUME, 0, 0);
PostThreadMessageA(lpMidiStrm->dwThreadID, WINE_MSM_RESUME, 0, 0);
return ret;
}
@ -1517,7 +1511,7 @@ MMRESULT WINAPI midiStreamStop(HMIDISTRM hMidiStrm)
if (!MMSYSTEM_GetMidiStream(hMidiStrm, &lpMidiStrm, NULL))
return MMSYSERR_INVALHANDLE;
MMSYSTEM_MidiStream_PostMessage(lpMidiStrm, WINE_MSM_STOP, 0, 0);
PostThreadMessageA(lpMidiStrm->dwThreadID, WINE_MSM_STOP, 0, 0);
return ret;
}